Apparatus for imstamtas



(No Model.)

A. S. BARKER.

APPARATUS POR INSTANTANEOUS PHOTOGRAPHY.

ATTORNEY.

Il l 'l mvENToR;

,f p yb. .,l,

Patented June 9, 1885.

WITNESSES one end rte the other, the

ALBERT e. nennen, enteren', PENNSYLVANIA.

SPECIFCATION forming part et" "Letters No.

$339,663, dated June 9, 1885.

Application tlleil September 6, 1884, (No modul.)

ino r1/ZJ wwm it' may connerie:

Be it` known that l, ALBERT S. zt citizen of the United.St-ntes,reeidinget Clifton, in the county of Delaware, Stete of .Pennsylvania, haveinvented a new and useful inuprovement in `Appnratus for netantaneouePhotography, which improvement is fully set forth in the followingspecification neonapanying drawings, in which@ Figure 1 represents nfreut view of rntus for instantaneous photography embody ing myinventien. Fig. 2 represente e er pien view ef e enxnere,and nherienntel seet in line .e x, Fig. l, ef the apparatus embed myinvention. ren section in line 'y y, Fig. 2. horizontal sentieri et thef. and the photegrephie le Similar letters ei :rete spending parte inthe neve My invention eoneists e apparatus for instemt-nnen? hereinafterdescribed, W plate is successively expe hetegrephgf, es phetogreph-ieall lieinte treni ing n phot@A eet or oojeets nereor" mreseuts eshutter, i which graphie picture of e moving with e completeness of theReferring te'the drawings, f reine withinwhieh isiittetl ne B, neck of,hiehis shoulder, a, the phL plate C ie rested.

D rel resents helder fer seid plete,lhe Seme eonsintig of et suitableheard er plete, which is ettnehehle te the neck er" the freine A byineens of chips, `buttons, or other iestenings, and provided on itsinner ieee with spring,

which bears against the photographie plate for retaining the seine inposition.

ln the shutter B isn slot, E, Wh'eh is in the form of a freine removablyeonneeted with the shutter, se that slots of different einen may he'applied thereto, ehr-itt@ having e suitable knob or handle, i),Whereloyit may be readily drawn out te operative peeition, and n notchor shoulder, ejer the engngementen bolt, latch, or other fastening, d,en the frame A, so that the shutter r he leelefi er held, the'nnek efthe frerneoeingsnitehly sletted, ns ntf, te permit the pfitesnge er" theknee er handle b. .A spring, e, is eenneeted with moving tenements' inthe shutter when the latter is released from the heiding action et" thefastening d.

will lne seen that the device or apparatus described is :t Combinedplztteholder and expeeing-shutter, it being noticed that the;photographie plete is behind the shutter and seperated therefrom by thesinnll shoulder or rnbloet en which it rests.

'The devine er apparatus is inserted iu the -nstruinent er cement, asshown in Fig. 2, it seing noticed that the front ofthe frmne has nholder, n, 'for the shield primarily eniif'loyetl.

will he eeen that when the fastening d is released' the shutter, underimpulse oi' the spring e, is rep/idly moved, carrying the elet E pestthe photographie plate in n simil-ur innuner.

In 4 regs are illust 4ed as proceeding reni the heel; lens te the threepoints .7ev 7i h fthe photographie plate, und in Figs. l and 2, et sletE in the shutter is represented :ts'hnviug etsen tiepointh; ontthereys'projeet equnll y en the plete et every point thereof i'roin end` toend the seine, und enel; point is exposed by the passing slot for theshort-est possible time consist-eut with n given amount of actiuionetion. v

A niet hell' of nu inch Wideis made lio move its own length in oneonehuudredth purl; of :t second.; therefore iu pnssiugiu front of pointh it ennesee that point to Vthe action ot' the fell eene ef rays forthnt length ot' time, each ref; whieli takes part in the formation ofthat leet during the one one-hundrer'lth part ofn seoend, wor 'l eonsumetive one-hundredths part efaseeond in elearing the opening ofthe lens;hence the great advantages presented by ine, for the slot of e shuttermoving nt n given rnte wil pas@ any point on the photographie platte ininneu less time than it would require to traverse the diameter ofthelens, while the entienis the sinne.

. ui ertndeorn, nud other menus sing e pnotogrnphie plntekeep the entireplate eontinunusly exposed, and l'or n lenger time than 'the notion ofany given rey, my lnventien permits the successive exposure IOC vTatent, isp-.g

v An apparatus forinstantmi'eous photography consisting of'a `fume-workadjustable .to the' back of a camera, Containing a compartment ffor@sensitized pltemd immediately in front I5' of the'plate n, shut-telfwith va slot, the shutter being so arranged that the exposure iseffeebe@ by the passage ofa slot from end toend of ,the plate,.andt-hevplate is protecteCL by the solid parts of the lshutter before andafter the 2o passage of the slot.

ALBERT S. BARMER.4

Witnesses.

JOHN A. WmDnRsImm, Y A. GRANT.V

